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Local variations of the dynamic elastic modulus around running cracks

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Abstract

The variation of the dynamic elastic modulus in the immediate vicinity of the tip of the running crack was studied through an iterative procedure, based on the theoretical expressions for the stress-field components and the experimental relation between strain rate and elastic modulus. It was found that the elastic modulus varied strongly around the tip of the crack, both in radial and polar sense. Also it was observed that the polar distribution of the elastic modulus presented clear off-axis extrema in directions that were in good agreement with experimentally measured branching angles, thus indicating a possible relation between these two phenomena.

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Authors and Affiliations

  1. National Academy of Athens, P.O. Box 77230, 175-10, Athens, Greece

    P. S. Theocaris

  2. Department of Engineering Sciences, Athens National Technical University, 5 Heroes of Polytechnion Avenue, 157-73, Greece

    N. P. Andrianopoulos & S. K. Kourkoulis

Authors
  1. P. S. Theocaris
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  2. N. P. Andrianopoulos
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  3. S. K. Kourkoulis
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Theocaris, P.S., Andrianopoulos, N.P. & Kourkoulis, S.K. Local variations of the dynamic elastic modulus around running cracks. J Mater Sci 28, 4510–4514 (1993). https://doi.org/10.1007/BF01154964

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  • DOI: https://doi.org/10.1007/BF01154964

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